[u801e]

Certificate based authentication would work in combination with a username and password. The private key could be stored on the school issued device.

I'm not sure why anonymity would play any role in terms of connecting to an online class.

[curryst]

I thought the same thing as you, but many students use their personal devices. I can't imagine the pain of trying to get all the students to set that up correctly, and the security implications of managing certificate stores is not something I would want to hand over to a lowest-bidder contractor for a school district. I don't really love that Microsoft/Linux distros manage them as is (although I'm admittedly too lazy to manage them manually).